An electric pump having a constant power rating of is used to lift water from a well
PHYSICS · Multi-part · CBSE · Physics · Work and Energy · Work and Energy
Problem
An electric pump having a constant power rating of 2kW is used to lift water from a well. The pump has to raise 2000kg of water from a depth of 10m.
(i) Calculate the total mechanical work that must be done on the water.
(ii) Assuming the pump works at its stated power without losses, determine the time required to lift all the water.
(iii) How many minutes and seconds does the time obtained in part (ii) correspond to?